3D Printer Error & Symptom Checker
Use this page when you know what the failed print looks like but do not know which setting or part caused it. Match the symptom, verify the likely cause, then follow the related guide.
Symptom map
Print will not stick
Likely causes: Z offset, dirty bed, incorrect bed temperature, low first-layer flow, warped build plate, or draft/cooling changes.
Thin hairs between parts
Likely causes: temperature too high, wet filament, retraction too low, travel too slow, pressure advance mismatch.
Weak or brittle walls
Likely causes: low temperature, under-extrusion, poor wall count, wet filament, speed too high, weak material choice.